gmqcc/alloc.c
2012-04-09 23:12:42 -04:00

66 lines
2.3 KiB
C

/*
* Copyright (C) 2012
* Dale Weiler
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdint.h>
#include <stdlib.h>
#include "gmqcc.h"
/*
* The compiler has it's own memory tracker / allocator for debugging
* reasons. It will help find things like buggy CSE or OOMs (if this
* compiler ever grows to that point.)
*/
struct memblock_t {
const char *file;
unsigned int line;
unsigned int byte;
};
void *memory_a(unsigned int byte, unsigned int line, const char *file) {
struct memblock_t *data = malloc(sizeof(struct memblock_t) + byte);
if (!data) return NULL;
data->line = line;
data->byte = byte;
data->file = file;
printf("[MEM] allocation: %08u (bytes) at %s:%u\n", byte, file, line);
return (void*)((uintptr_t)data+sizeof(struct memblock_t));
}
void memory_d(void *ptrn, unsigned int line, const char *file) {
if (!ptrn) return;
void *data = (void*)((uintptr_t)ptrn-sizeof(struct memblock_t));
struct memblock_t *info = (struct memblock_t*)data;
printf("[MEM] released: %08u (bytes) at %s:%u\n", info->byte, file, line);
free(data);
}
/*
* Ensure the macros are not already defined otherwise the memory
* tracker will fail. I hate trying to fix macro bugs, this should
* help stop any of that from occuring.
*/
#ifdef mem_a
#undef mem_a
#endif
#ifdef mem_d
#undef mem_d
#endif